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What are all of the real roots of the following polynomial? f(x) = x4 - 13x2 + 36-3, -2, 2, and 3-3...
4 months ago
Q:
What are all of the real roots of the following polynomial? f(x) = x4 - 13x2 + 36-3, -2, 2, and 3-3 and 3-2 and 2-3, -1, 1, and 3
Accepted Solution
A:
x^4 - 13x^2 + 36 = 0
(x^2 - 9)(x^2 - 4) = 0
x^2 - 9 = 0 gives x = 3, -3
x^2 - 4 = 0, gives x = 2, -2.
Answer is A.